linux/Documentation/video4linux
Hans Verkuil e37559b22c [media] vb2: stop_streaming should return void
The vb2 core ignores any return code from the stop_streaming op.
And there really isn't anything it can do anyway in case of an error.
So change the return type to void and update any drivers that implement it.

The int return gave drivers the idea that this operation could actually
fail, but that's really not the case.

The pwc amd sdr-msi3101 drivers both had this construction:

        if (mutex_lock_interruptible(&s->v4l2_lock))
                return -ERESTARTSYS;

This has been updated to just call mutex_lock(). The stop_streaming op
expects this to really stop streaming and I very much doubt this will
work reliably if stop_streaming just returns without really stopping the
DMA.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-23 10:12:51 -03:00
..
bttv doc: fix quite a few typos within Documentation 2012-11-19 14:28:24 +01:00
cx88
cx2341x
.gitignore
4CCs.txt [media] v4l: Document raw bayer 4CC codes 2012-05-14 08:38:17 -03:00
API.html
cafe_ccic
CARDLIST.au0828 [media] Documentation: update V4L cardlists 2013-02-08 14:51:36 -02:00
CARDLIST.bttv Documentation: Update cardlists 2014-04-23 09:58:16 -03:00
CARDLIST.cx88
CARDLIST.cx23885 [media] Update CARDLIST.cx23885 2014-03-04 14:43:34 -03:00
CARDLIST.em28xx Documentation: Update cardlists 2014-04-23 09:58:16 -03:00
CARDLIST.ivtv
CARDLIST.saa7134 [media] update saa7134 and tuner cardlists 2013-05-21 08:16:19 -03:00
CARDLIST.saa7164
CARDLIST.tm6000
CARDLIST.tuner [media] update saa7134 and tuner cardlists 2013-05-21 08:16:19 -03:00
CARDLIST.usbvision
cpia2_overview.txt [media] Documentation: Add newline at end-of-file to files lacking one 2012-07-30 20:37:01 -03:00
CQcam.txt [media] v4l: Documentation: change path of video drivers 2012-09-25 08:41:30 -03:00
cx18.txt
extract_xc3028.pl [media] extract_xc3028.pl: fix permissions 2013-01-11 13:01:37 -02:00
fimc.txt [media] s5p-fimc: Remove reference to outdated macro 2014-03-14 10:37:43 -03:00
gspca.txt [media] media: gspca: sn9c20x: add ID for Genius Look 1320 V2 2014-02-28 14:37:43 -03:00
hauppauge-wintv-cx88-ir.txt
lifeview.txt
meye.txt
not-in-cx2388x-datasheet.txt
omap3isp.txt [media] v4l: Documentation: change path of video drivers 2012-09-25 08:41:30 -03:00
omap4_camera.txt [media] v4l: omap4iss: Add support for OMAP4 camera interface - Core 2013-12-03 17:21:04 -02:00
pxa_camera.txt
radiotrack.txt
README.cpia2 doc: fix a few typos 2012-04-05 17:02:52 -07:00
README.cx88
README.davinci-vpbe [media] v4l: Documentation: change path of video drivers 2012-09-25 08:41:30 -03:00
README.ir
README.ivtv
README.pvrusb2
README.saa7134
README.tlg2300
sh_mobile_ceu_camera.txt
si470x.txt [media] radio-si470x doc: add info about v4l2-ctl and sox+alsa 2013-02-13 17:33:20 -02:00
si476x.txt [media] doc: no singing 2013-12-10 17:13:33 -02:00
si4713.txt
soc-camera.txt Documentation/video4linux/soc-camera.txt fix a typo 2013-06-05 16:24:57 +02:00
uvcvideo.txt
v4l2-controls.txt [media] V4L: Add support for integer menu controls with standard menu items 2013-08-18 07:12:59 -03:00
v4l2-framework.txt [media] v4l2-pci-skeleton: add a V4L2 PCI skeleton driver 2014-03-14 09:53:53 -03:00
v4l2-pci-skeleton.c [media] vb2: stop_streaming should return void 2014-04-23 10:12:51 -03:00
videobuf [media] v4l: Documentation: change path of video drivers 2012-09-25 08:41:30 -03:00
w9966.txt
Zoran
zr364xx.txt

tlg2300 release notes
====================

This is a v4l2/dvb device driver for the tlg2300 chip.


current status
==============

video
	- support mmap and read().(no overlay)

audio
	- The driver will register a ALSA card for the audio input.

vbi
	- Works for almost TV norms.

dvb-t
	- works for DVB-T

FM
	- Works for radio.

---------------------------------------------------------------------------
TESTED APPLICATIONS:

-VLC1.0.4 test the video and dvb. The GUI is friendly to use.

-Mplayer test the video.

-Mplayer test the FM. The mplayer should be compiled with --enable-radio and
	 --enable-radio-capture.
	The command runs as this(The alsa audio registers to card 1):
	#mplayer radio://103.7/capture/ -radio adevice=hw=1,0:arate=48000 \
		-rawaudio rate=48000:channels=2

---------------------------------------------------------------------------
KNOWN PROBLEMS:
about preemphasis:
	You can set the preemphasis for radio by the following command:
	#v4l2-ctl -d /dev/radio0 --set-ctrl=pre_emphasis_settings=1

	"pre_emphasis_settings=1" means that you select the 50us. If you want
	to select the 75us, please use "pre_emphasis_settings=2"